Melanto Calculator icon

Melanto Calculator

by Melanto Ltd. · vpchar.com · Workflow & Planning
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

One different scientific calculator...

Users
7,000
+1,000 in 30 days
Rating
4.2 / 5
unchanged in 30 days
Ratings
52
0 in 30 days
Store rank
#12K
#9,959 among extensions
Version
4.1
updated 23 Feb 2026

Users

monthly, 3 years
1,0005,50010KAug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 7,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
103253Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 52 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Melanto Calculator

This is kinda unusual scientific calculator. What makes it unusual is that you can see both sides of the current binary operation. For example -- if you type 2 + 2 you'll see exactly "2 + 2" until you press "=". The tool was made with touch-screen in mind and should be ready for touch-screen chromebooks. On devices with keyboard you can use the obvious keys: number keys, dot (floating point), +, -, *, /, Enter (=), ESC (C) and Backspace. The advanced ("scientific") functions are not yet accessible with keyboard shortcuts (but better keyboard support is planned for the next releases). The initial goal of this extension was to be a real-life example of jQuery Mobile (and it worked as such) but somehow, with the time, more options were added and it became full-featured scientific calculator. It is, however, still work in progress, so let me know if you find a bug, if something isn't working or if you want to see new feature added. Options: There are 3 different “themes” for you too choose from. You can change the theme from the options page. Select between black, white or the original “3d buttons”. (Just click the “options” link at the bottom-right of the extension's popup and select the respective theme from the list) Other versions of Melanto Calculator The same tool is available in 3 different versions: this one (extension added to the toolbar), as standalone chrome app (adding calculator icon to the apps page and opening the tool in its own browser tab) and as “desktop” app (pens the calculator in separate window, simulating desktop app). Here are the other two versions: App version: https://chrome.google.com/webstore/detail/melanto-calculator/nioffklpggjkmgpndbfklpnclpohpjid “Desktop” version: https://chrome.google.com/webstore/detail/calculator/inhhlmhdllknkepmabbkhnlbaddllabl All the 3 versions come with the same underlying code but I couldn’t create one single tool to address all the 3 ways of use because Chrome doesn’t allow apps to add icon to the toolbar (so we need the extension), while extension can’t add icon to the apps page (so we need an app) and then, at some moment Chrome offered the “packaged apps” option and I made the “desktop” version for those who want it in separate window, acting as separate app… DISCLAIMER OF WARRANTIES: MELANTO CALCULATOR IS PROVIDED “AS IS” AND WITHOUT WARRANTY OF ANY KIND www.melanto.com

Growth

WindowUsersChangeRatingsRating
7 days+1,000+16.7%00.00
30 days+1,000+16.7%00.00
6 months0+0.0%00.00
1 year+1,000+16.7%00.00

Chrome Web Store search rankings

Where Melanto Calculator appears when people search the store, with the 30 day change
Search phrasePosition30 days
calculator#66+14

Version history

2 versions recorded
4.123 Feb 2026
4.017 Sep 2018

Details

Category
Workflow & Planning
First seen
17 Sep 2018
Size
633 KB
Languages
en
Pricing
Free
Privacy policy
vpchar.com
Support
vpchar.com
Extension ID
olhcajgllkpacioibcjiniefblpmpech

Permissions and risk

Low riskimpact 1, likelihood 1
Permissions
storageclipboardReadclipboardWrite

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